Jbailey
Member
I was told my display was the problem but I have a 650k to test with and that wasn't it. The only thing I cant test is ecu series 3 vs series 2 and a new one is 8000$ and 6-8 weeks out. no guarantee.\
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Case 850 K No Can
- Thread starter Jbailey
- Start date
dieselgabe2020
Member
Is your Joystick getting power?
Jbailey
Member
yes
dieselgabe2020
Member
You got the service manual for it? I just downloaded one yesterday
Jbailey
Member
I have the original one but I cant find the CAN diagnosis steps.
Jbailey
Member
What part of town is the machine?
nowing75
Senior Member
did you verify all powers and grounds to the module? Sounds like you checked the can lines and have the proper voltage.
Jbailey
Member
I actually had a tech come verify he said all voltage and grounds were good but I need more documentation to verify my self. We repaired and swapped relays and test joystick and display between 2 machines.
mekanik
Senior Member
If a "Tech" tried to connect to the machine and couldn't that would be a red flag for me. I have worked with a few "Techs" that when the laptop couldn't tell them how to fix the problem they were lost.
CAN stands for Controller Area Network. Can is a network like a phone party line that all the modules talk to each other on. It is a part of the wiring harness. The data wires will either be a twisted pair or a parallel pair of wires with a shielding wire wrapped around them or a foil shielding around them. The twisted pair is by far the most common.
I would guess that there is a 99+% chance that either a data wire has broken or rubbed through and is grounding or a terminating resistor has lost connection and a less than 1% chance a module has failed and is taking down communication on the data link. If all the devices on the data link lost power that might cause a No CAN message as well. That would depend on Case's software.
On Post #9 I posted how to test the data link. If you are familiar with a multimeter it only take a couple minutes. Post your results.
Here is a link to a basic explanation of CAN:
https://www.csselectronics.com/pages/can-bus-simple-intro-tutorial
CAN stands for Controller Area Network. Can is a network like a phone party line that all the modules talk to each other on. It is a part of the wiring harness. The data wires will either be a twisted pair or a parallel pair of wires with a shielding wire wrapped around them or a foil shielding around them. The twisted pair is by far the most common.
I would guess that there is a 99+% chance that either a data wire has broken or rubbed through and is grounding or a terminating resistor has lost connection and a less than 1% chance a module has failed and is taking down communication on the data link. If all the devices on the data link lost power that might cause a No CAN message as well. That would depend on Case's software.
On Post #9 I posted how to test the data link. If you are familiar with a multimeter it only take a couple minutes. Post your results.
Here is a link to a basic explanation of CAN:
https://www.csselectronics.com/pages/can-bus-simple-intro-tutorial
dieselgabe2020
Member
Did you ever get it fixed? And machine is in waco tx
Jbailey
Member
No i did not. We haven't had time to check all the harness..
dieselgabe2020
Member
Could I borrow a working Joystick for a day to see if that's my issue? They want 3000 for one and I'd like to make sure before I dump the coin.
Jbailey
Member
You said it is waco?
Give me a call at 7139065381.
Give me a call at 7139065381.